The density of nitroglycerine is 1.60 g/ml what is the volume in liters of a mole of liquid nitroglycerine

Answers

Answer 1

Answer: To be able to calculate the volume, we need the data on the molar mass and density of the substance nitroglycerine. The molar mass of nitroglycerine is 227.09 g/mol. We calculate as follows:

1 mol ( 227.09 g/mol) ( 1 mL / 1.60 g ) = 141.93 mL

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Is the answer 1 or 2? And why.
Which is an example of a beneficial mutation? ANSWERRRR HELPPP !!! choices : one that changes the color of a rabbit, allowing it to hide from predators.one that results in lighter flower petal colors without changing the plant’s ability to reproduce one that causes a person’s body to produce thick mucus that clogs the lungs one that makes it easier for a corn plant to contract a disease
The ionization energy of an element is a. a measure of its mass b. the energy required to remove an electron from the element in its gaseous state c. the energy released by the element in forming an ionic bond d. the energy released by the element upon receiving an additional electron e. none of the above

The ph of a 0.001 m hcl solution is closest to

a. 1
b. 7
c. 3
d. 10

Answers

C 3 is the answer because its right

Elements are organized on the periodic table based on their properties. Which statement correctly predicts and explains the chemical reactivity of two metals?A) The alkali metal atom forms a +1 ion, while the alkaline earth metal atom forms a +2 ion.
B) The alkali metal atom forms a +2 ion, while the alkaline earth metal atom forms a +1 ion.
C) The alkali metal atom has one less shell of electrons than the atom of the alkaline earth metal.
D) The alkali metal atom has one more shell of electrons than the atom of the alkaline earth metal.

Answers

Answer: The correct answer is Option A.

Explanation:

Chemical reactivity is defined as the tendency of an atom to loose or gain electrons.

Metals are the elements that looses electrons and thus, their chemical reactivity will be the tendency to loose electrons.

Their chemical reactivity decreases as we move from left to right in a period. This is so because, the electron get added up in the same shell. So, the electron in the outermost orbital gets more tightly bonded to nucleus. And hence, loosing an electron will require high energy. Thus, the chemical reactivity decreases.

Alkali metals are the elements which belong to group 1 of the periodic table. The general electronic configuration of these metals is $ns^1$

These metals will loose 1 electron to form +1 ions.

Alkaline earth metals are the elements which belong to group 2 of the periodic table. The general electronic configuration of these metals is $ns^2$

These metals will loose 2 electrons to form +2 ions.

Hence, the correct answer is Option A.

A) The alkali metal atoms forms a +1 ion, while the alkaline eaeth metal atom forms a +2 ion.

H2+ ½ O2 → H2O + 285kJ is an example of a(n)

LOTS OF POINTS PLZ HELP

Answers

Answer:

Exothermic reaction

Explanation:

Notice that the energy component is located on the right side of the reaction. The right side is always known as the product side. Whenever energy is located there, the reaction is known to give off energy - essentially, we can say that energy is a product, as well. Reactions that give off energy are known as exothermic reactions.

On the other hand, if the energy component was located on the left side, or reactant side, of the equation, it would be known as an endothermic reaction.

Here, it's exothermic.

Hope this helps!

Answer: Heat equation

Which sample of matter can be separated into different substances by physical means?(1) LiCl(aq) (3) NH3(g)
(2) LiCl(s) (4) NH3(l)

Answers

The sample of matter that can be separated into different substances by physical means is NH₃(g), which represents gaseous ammonia. Therefore, option D is correct.

Physical means, such as changes in temperature or pressure, can cause NH3 gas to condense into a liquid state (NH₃(l)) or freeze into a solid state (NH₃(s)). These changes in physical state can be reversed, allowing the substance to be separated into its different forms without changing its chemical composition.

Gaseous ammonia consists of individual NH₃ molecules that are not strongly bonded to each other. This state can be separated into its individual molecules using physical means.

Learn more about ammonia, here:

brainly.com/question/29519032

#SPJ2

Answer:

(1) LiCl(aq)

Explanation:

Question:

Which sample of matter can be separated into different substances by physical means?

1. LiCl(aq) ✔

2. LiCl(s) ❌

3. NH₃(g) ❌

4. NH₃(ℓ) ❌

Reason:

LiCl(a) is a mixture of a compound and water. The LiCl can be separated from the water. All the other choices are compounds.

Related Vocabulary:

- Aqueous: a water solution , indicated by the notion "(aq)". For example, HCl(aq) indicated a water solution of hydrochloric acid.

- Matter: Anything that has mass and takes up space.

An experimental procedure requires 10 ml of acid to be dissolved into a beaker of water. An additional 5 ml of acid is added to the solution. Which statement best describes the new solution? the strength of the acid in the solution has been increased the concentration of acid in the solution has decreased by one half the concentration of acid in the solution has been increased the strength of the acid in the solution has decreased by one half

Answers

Answer:

The correct statement is that the concentration of the acid in the solution will increase.

Explanation:

On the basis of the given question, if one dissolves 10 milliliters of acid in a beaker of water, the acid will get diluted. As the number of moles of acid is not going to change, thus, one can use the formula:

M1V1 = M2V2

Here, M is the concentration of the acid in the solution,

V1 = 10 ml

V2 = V water + 10

If we supplement, an other 5 ml of acid, the new concentration of the acid will be:

M = M1 (5 ml) + M2 (Vwater + 10 ml) / (5 ml + V water + 10 ml)

Therefore, the concentration of the acid in the new solution will increase.

Answer:

the concentration of acid in the solution has been increased.

Explanation:

the answer is C on edge.

Which substance does not obey the Lewis octet rule?a. O₂
b. NO
c. CO
d. N₂
Can anyone explain this one for me?